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MitM Attack Simulation

conducting-man-in-the-middle-attack-simulation

mukul975/Anthropic-Cybersecurity-Skills

Simulates MITM scenarios with Bettercap, Ettercap, and mitmproxy in authorized lab settings to validate TLS enforcement, DNS/ARP spoofing detection, credential interception, and defender response workflows through controlled traffic manipulation.

Detecting DNS Exfiltration

detecting-dns-exfiltration-with-dns-query-analysis

mukul975/Anthropic-Cybersecurity-Skills

Builds a detection capability to flag data exfiltration via DNS tunneling by analyzing query entropy, subdomain metrics, query volume, TXT responses, and payload sizes using passive DNS monitoring plus statistical checks.

Zeek DNS Exfiltration

detecting-exfiltration-over-dns-with-zeek

mukul975/Anthropic-Cybersecurity-Skills

Analyzes Zeek dns.log to spot high-entropy subdomains, long labels, and query-volume anomalies, helping SOC teams detect DNS tunneling and exfiltration.

Zeek Network Anomaly Detection

detecting-network-anomalies-with-zeek

mukul975/Anthropic-Cybersecurity-Skills

Deploys Zeek to passively monitor network traffic, emit structured connection/DNS/HTTP/SSL logs, and run custom scripts that flag anomalous behavior for threat hunting and incident response teams.

Shadow IT Cloud Detection

detecting-shadow-it-cloud-usage

mukul975/Anthropic-Cybersecurity-Skills

Analyzes proxy, DNS, and netflow logs with pandas to surface unauthorized SaaS usage, classify discovered domains, and score services so SOC teams can prioritize remediation.

Data Exfiltration Hunt

hunting-for-data-exfiltration-indicators

mukul975/Anthropic-Cybersecurity-Skills

Conduct proactive threat hunts for data exfiltration by analyzing network transfers, spotting DNS tunneling, cloud uploads, and encrypted channel abuse to validate suspicious outbound flows in incident response.

DNS Persistence Hunting

hunting-for-dns-based-persistence

mukul975/Anthropic-Cybersecurity-Skills

Hunt DNS-based persistence by auditing passive DNS data, SecurityTrails history, audit logs, and zone transfers to uncover hijacked records, dangling CNAMEs, wildcard abuse, and unauthorized delegations across cloud/on-prem domains.

Zeek DNS Tunneling Hunt

hunting-for-dns-tunneling-with-zeek

mukul975/Anthropic-Cybersecurity-Skills

Detect DNS tunneling data exfiltration by analyzing Zeek dns.log for high-entropy subdomains, long queries, unusual record types, and elevated volume, correlating with connection metadata and threat intelligence.

Cloudflare DDoS Mitigation

implementing-ddos-mitigation-with-cloudflare

mukul975/Anthropic-Cybersecurity-Skills

Configures Cloudflare's DDoS protection stack—managed rulesets for L3/4 and L7, WAF, rate limiting, Bot Management, DNS safeguards, and origin hardening—to stop volumetric, protocol, and application floods.

Canarytoken Deception Detection

implementing-deception-based-detection-with-canarytoken

mukul975/Anthropic-Cybersecurity-Skills

Automates Canary Tokens via the Thinkst Canary API to deploy web bugs, DNS, document, and AWS key tokens, monitor alerts, and report deception coverage for breach detection and response.

DMARC DKIM SPF Setup

implementing-dmarc-dkim-spf-email-security

mukul975/Anthropic-Cybersecurity-Skills

Step-by-step guide to implement SPF, DKIM, and DMARC so administrators can authenticate outbound mail, block spoofing, and monitor compliance through DNS records and reporting scripts.

Email Authentication Audit

implementing-email-security-with-dmarc-dkim-spf

mukul975/Anthropic-Cybersecurity-Skills

Audits a domain’s email authentication by querying SPF, DKIM, and DMARC DNS records using dnspython, validating syntax/counts, flagging common spoofing risks, and producing remediation guidance.

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